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"Méndez V., Néstor J., 1954- author"
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Sediment Transport in Irrigation Canals
Sediment transport in irrigation canals influences to a great extent the sustainability of an irrigation system. Unwanted erosion or deposition will not only increase maintenance costs, but may also lead to unfair, unpredictable and inadequate distribution of irrigation water. Proper knowledge of the behaviour and transport of sediment will help to plan efficient and reliable water delivery schedules, to have a controlled deposition of sediments, to estimate and arrange maintenance activities, etc. The main aim of these lecture notes is to present a detailed analysis and physical and mathematical descriptions of the behaviour of sediment transport in irrigation canals and to describe the mathematical model Setric that predicts the sediment transport, deposition and entrainment rate for various flow conditions and sediment inputs. The model is typically suited for the simulation of sediment transport under the particular conditions of irrigation canals where the flow and sediment transport are strongly determined by the operation of the flow control structures. The lecture notes will contribute to an improved understanding of the behaviour of sediments in irrigation canals. They will also help to decide on water delivery plans to evaluate design alternatives and to achieve an adequate and reliable water supply to the farmers.
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